In-cylinder fuel injection internal-combustion engine
First Claim
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1. An in-cylinder fuel injection internal-combustion engine comprising:
- a combustion chamber with a cylinder;
a fuel injection valve that directly injects a fuel toward a center line of the cylinder from a direction that makes an angle with the center line of the cylinder; and
an ignition plug that is arranged substantially at a vertex of the cylinder, wherein the fuel injection valve includes an injection opening that is arranged at a tip of the fuel injection valve, and from which a spray is injected in such a manner that the spray has a shape in substantially a V-shape that gradually widens toward an end in directions from a portion closer to the ignition plug to portions closer to a surface of a side wall of the combustion chamber, the shape formed on a cross-section perpendicular to a direction of injection.
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Abstract
A fuel injection valve that directly injects a fuel into a combustion chamber from a rim of a cylinder toward a center line of the cylinder in a slanting direction toward a lower portion of the combustion chamber, an ignition plug that is arranged at substantially a center of the cylinder, and injection openings from which a spray that forms a shape that widens toward an end from a portion near a center of the combustion chamber toward a side wall of the combustion chamber on a cross-section perpendicular to a direction of injection is injected are included.
16 Citations
11 Claims
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1. An in-cylinder fuel injection internal-combustion engine comprising:
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a combustion chamber with a cylinder;
a fuel injection valve that directly injects a fuel toward a center line of the cylinder from a direction that makes an angle with the center line of the cylinder; and
an ignition plug that is arranged substantially at a vertex of the cylinder, wherein the fuel injection valve includes an injection opening that is arranged at a tip of the fuel injection valve, and from which a spray is injected in such a manner that the spray has a shape in substantially a V-shape that gradually widens toward an end in directions from a portion closer to the ignition plug to portions closer to a surface of a side wall of the combustion chamber, the shape formed on a cross-section perpendicular to a direction of injection. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification